Filing and jig-saw machine



Nov. 2, 1943. H, GREEN 2,333,372

FILING AND JIGSAW MACHINE Filed Aug. 20, 1941 2 Sheets-Sheet 1 I i II INVENTOR llarr Greero BY ATTORNEY 2 Sheets-Sheet 2 Filed Aug. 20, 1941 m g 6 5 z a 1 m 1 a f dw I! 0 1 .\J.|| 6MP H 7 5 n 2 .1. M" d 3 6 W hr l hr 5 3 m m l 4 l 6 5 w l a a z a Ln r 2 w N. n viii u 9 0.. u. H W i 3% l 1 .11 6 n "n 1W M E 1 E n 2 Ffi WU a 3 w I 1 M I n 0 2 2 ..|||I UH; T m i m a p 7 a 1 a n w x 7 a .J

INVENTOR Harry Greer ATTORNEY Patented Nov. 2, 1943 U N1 TED STATES PAT-EN OFF ICE FILING AND JIG-SAW MACHINE Harry Green, ElmhurstfLongIsland, Y. Application August 20, 1941, swarm. 407,511

' 8 Claims.

This invention relates to new and useful improvements in a filing and jigsaw-machine.

More particularly, the invention proposes a machine as mentioned which-"is constructed from a prime mover unit having a housing with a vertically reciprocating member projecting from the top thereof. This prime mover may-be new equipment, orit may comprise-numerous old and otherwise useless units. For example, the old type of gas compressor unit from a refrigerator may be used. There are any number of old pumps, compressors and other units which could also be used in accordance with this invention.

The invention proposes certain means for supporting'a work table over and acrossthe vertically reciprocating member sothat-the work table may be tilted in various directions. It is also proposed to provide the vertically reciprocating member with a chuck for supporting various tools such as a jigsaw, a file or the like.

Numerous modifications of the broad concept are also proposed. One ofsaid modifications-relates to a certain casing supported in a certain way and housing-a 'U-shaped member which is connected with the chuck andcapable or more eifectively supporting a jigsaw "or file or other implement.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the'following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In'the accompanying drawings forming a material part of this disclosure- Fig. 1 is a side elevational View of a'filingancl jigsaw machine constructed inaccordance-with this invention, certain parts being brokenaway to disclose interior construction.

Fig. 2 is a fragmentary enlarged elevational view looking in the direction ofthe line 2-2 of Fig. 1.

Fig. 3 is a fragmentary enlarged elevational view of a filing and jigsaw machine constructed in accordance with another form of this invention, certain parts being broken away to disclose the interior construction.

Fig. 4 is a fragmentary elevational view looking from the left hand side'of Fig. .3.

Fig. 5 is a fragmentary enlargedhorizontal sec- 1 Fig. i542. horizontal sectional 'view taken .on the line '8-L8 401' :3.

EigJQisa perspectivle view ofone of the clamp sections shownin Figs. ;2,=5rand26.

F r lois:a:perspectlve1view:of one 10f ,theslide sections shown;in:FPigs.-3 and 6.

Fig. LL isiazifragmentary perspective :view: of .the top :end or ithe U-shaped' member used :in "the device.

The filing and :jigsa-w rmachine, in accordance withthis inventionpincludes-a prime mover amit 10 having #9. housing ill with a vertically .reciprocating :member 12 iproj'ecting :froin "the l top thereof. This :prime .mover 211! is .shown to xinelude: a 'base l3iupon' oneJend :of which theredsan 'electric motor 1M provided iwttha'a variable speed transmission l 4f. llhe :transmission :14 is equipped with a. pulley El 6 engaged byzan .endless belt H whichextencls-"over ia pulley a .8 of .an 1 old type of gas compressor unit [9 of a refrigerator. This unit 19 ha's the .housing ill I from which the reciprocating :member 12 .projects.

A pair ofarms 20 is mounted-onithe housing 11 and extend's upwards. lheseiarms 29. have bottom flanges "4| which are" engaged .by fastening element's 2 2 which en-ga-ge 'the housing I l "thy which 'the arms are mounted'con ."the lhousing. A work table 23 is :disposed over :and across zthe housing M and is *prov'ided with an opening 22 1 superimposed above a reciprocating memberfl 2 A'pairof brakets ziare mounted on saiditable '23 and are adjustablyconnected with saidarms 20 and" are for thepur-poseof supportinglthei table 23. More specifically, =eah --bracke-t 125' has 53.11 'arcuate central section 26, and end flanges ii Fastening elements *21' -engage -these end I flanges 21 and thetable 23 for connecting these parts. Eacharcuate "central portion 28 is "formed with .an arcuate slot "28 which sis engaged by a .cap screw z having'a washerm' under its head. The .capsQreWs'ZQ' are *mounted on the arms 1213. .The arrangement is such thatthecap screws. 28 may be loosened and'then the work 'table 123 may the ivotediwithinfthe "limits allowed by theaarcuate .slots"28.

.Achuck '3! is mounted upon the'reciprocatin-g member I 2 is .Ifor' the purpose of supporting a tool,.-such-asthe'jigsaw bladei32' shown inFig. 1. .The chuck-a] is. of standard constructionand has :the usual L-controlnut 3&3 for-lthe usual turning i-tool nby which the ljaws ,of the chuck .may be opened ondclosed toireleaseandgrip a. stud35 -or pther molding element. The .-loott o.m end of the jigsaw -32 :is attached .to .the .stud A handle 34 is mounted on the top of the jigsaw 32..

The operation of the device is'as follows:

The prime mover I may be set into operation which causes the member |2 to reciprocate vertically through a certain amplitude, usually about 1%". Since the chuck 3| is mounted on the reciprocating member l2 it will be correspondingly moved. Thus the tool 32 is reciprocated. Work may be placed on the table 23 and engaged against the tool 32 in the usual way.

In Figs. 3 to 11 inclusive a-modified form of the invention has been disclosed which distinguishes from the prior form in the fact that means is provided for supporting the upper end of the tool to facilitate its reciprocating action without likelihood of bending, breaki ng, or other damage to the tools being used. In accordance with this form of the invention a U-shaped casing 36 is turned on its side and is supported by one of its side portions 36 which is mounted on one of the arms 20. The casing 36 has itsother arm 36* superimposed above. thezarm 36. The arms 36- and 36 are of tubular construction which may be understood by'examining Fig. 4. However, the central portion of the U-shaped casing 36, that is the portion which joins the rear ends of the sides 36 and 36 is open at the back, see Figs. 3 and 4. A U-shaped member 31 is also turned on its side and is supported .by one of its side portions 31* which is mounted on the chuck 3|. The U-shaped member 31 extends through the casing 36. The sideportion 31 ex.- tends through the side portion 36, and its other side portion 31 extends through the side portion 36 of the casing. The U-shaped member 31 may be removedfrom the casing 36.when it is freed and then it may be pulled towards the left, as illustrated in Fig. 3, so that it is moved out from the opened central portion of the U-shaped casing 36. r

The side portion 31 of the, U-shaped member 31 projects from the outer end of the arm 36 and is provided with a removably mounted bracket 38 from which a pair of parallel pins 39 project, see Fig. 8. These pins ,39 straddle the chuck 3| and extend through a pair of lugs 40 mounted on the sides of the chuck 3 I. Set screws 4| are mounted through the lugs 40 and abut the pins 39 for fixedly connecting the U -shaped member 31 with the chuck. 'A tool holding unit 42 is mounted upon the side portion 31 of the U- shaped member'31 and is disposed directly above the chuck 3|. By loosening the set screws 4|, the U-shaped member 31 may be shifted slightly laterally so as to properly align the tool holding unit 42 with the tool holding stem of the chuck'3l.

The holding unit 42 includes a clamp which is "mounted upon theside portion 31 of the U- shaped member 31 and which includes a pair of clamp sections 43. Each of these clamp sections has a semi-cylindrical central portion 43 and end flange portions 43 and 43. (See Fig 9.) The flange portions 43 are formed with aligned T-shaped slots 44 into which the T-shaped end 31 of the portion 31 engages. The flanges 43 are secured together with a fastening element 45, such as a bolt, 'for holding the clamp sections tightly on theend 31 of the U-shaped member 31. A vertical tube 46 passes through the cylindrical portions 43 of the clamp sections and is fixedly held in various selected vertical positions by the fastening element 45. When the fastening element'45 is loosened the vertical tube 46 may be raised or lowered. '-Then the fastening element 45 may be tightened to lock it in its selected position.

A stem 41 slidably passes through the vertical tube 46 and is held non-rotative therein. This is accomplished by several set screws 48 threadedly mounted on the tube 46 and engaging in a longitudinal slot 49 formed along one side of the vertical tube 46. A nut 50 is threadedly mounted on the top portion of the stem 41 and abuts the top end of the vertical tube 46 by which the stem 41 may be held in various elevated positions. A fastening element 5| connects the bottom end of the stem 41 with the jigsaw blade 32 or other tool used in the device.

Means is provided for resiliently urging the U-shaped member 31 into its top position. This means includes a pair of slide sections 53 which are fixedly mounted on the am 31 of the U.- shaped member 31. More particularly, the arm 31 is formed with a pair of top and bottom recesses 54 over which the slide sections 53 are mounted. (See Fig. 11.) Each slide section 53 has a central cutout 55 (see Fig. 10) of a size adapted to extend across the material of the arm 31 between the recesses 54. Each slide section 53 has a lug 51 projecting from its side. Fastening elements 56 are engaged through the lugs 51 and thus through the slide sections 53, and also through the side portion 31 for fixedly mounting the slide sections on said side portion 31 Each slide section 53 is of semi-cylindrical form so that both together are of cylindrical form.

The side portion 36 of the U-shaped casing 36 is formed from a pair of laterally adjacent sections 36 and 36". (See Fig.6.) These sections terminate at their free end in a cylindrical portion 60. This cylindrical portion 60 is formed with a pair of vertical longitudinal slots 6| on.

diametrically opposite sides. (See Fig. 7.) The lugs 61 project from these slots 6|. Fastening elements 62 assist in connecting the sections 36' and 36" together. These sections are also held together by additional fastening elements 63 which are mounted on flanges 64 upon adjacent ends of the arm 36 and the central portion of.

the casing 36. A pair of horizontal cylindrical projections 6 are mounted upon the sides of the arm 36 Springs 66 are mounted on these projections 65. The outer ends 66 of these springs are attached to the projections 65. The inner ends 66 extend through the lugs 51. The springs 66 are so tensioned that they normally urge the lugs 51 into the top ends of the vertical slots 6|.

This, of course, is the top position for the U- shaped member 31.

A tubular clamp 10 is mounted on each side of the arm 36*. A rod, 1| passes through each tubular clamp 10. Each tubular clamp 10 is provided with a screw 12 by which the clamp may be closed to hold the rod 1| in a fixed elevated position. Each rod 1| has a bottom portion 1| which extends horizontally. The free ends of these portions 1| ar provided with rollers 13 which may be engaged against the file or saw to act as a support or slightly above the work placed on the table 23 to prevent the work from being liitedup from the table, during the upward motion of the saw.

The side portion 36 of the casing 36 is made from separate material from the central portion thereof... and the adjacent ends have flanges 14 which are engaged by fastening screws 15 for connecting theseparts-together. l

The operation of this form of the device is as follows:

When the prime mover unit HI operates, the member I2 will reciprocate vertically. Since :the chuck 3| is mounted on the member l2 it will move correspondingly. This causes vertical reciprocation of the U-shaped member 31. The 001 32, which is mounted between the ends of the U-shaped member 31, will be reciprocated. Work may be placed on the table 23 and engaged against the tool 32.

The U-shaped member 31 may be removed from the open back end of the casing 36 by removing the parts connected with it.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a, U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member tool holding unit to reciprocate with said chuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, comprising lugs projecting from diametrically opposite sides of said chuck and formed with openings, spaced pins projecting from the bottommost side portions of said U-shaped member and extended through said openings, and means for locking said pins in position relative to said lugs.

2. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool holdin unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, comprising lugs projecting from diametrically opposite sides of said chuck and formed with openings, spaced pins projecting from the bottommost side portions of said U- shaped member and extended through said openings, and means for locking said pins in position relative to said lugs, said latter means, comprising screws threadedly engaged through said lugs and abutting said pins.

3. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, said tool holding unit comprising a clamp mounted on the topmost side portion of said U-shaped member, a tube vertically mounted in said clamp, a stem non-rotatively but vertically slidably mounted through said tube to have its bottom end connected with the top end of the tool being used, and means for holding said stem in various adjusted positions relative to said tube for spacing the end of said stern relative to said chuck permitting tools of difierent 1e: ths to be used in said machine.

4. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said Ushaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with saidchuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, said tool holding unit comprising aclamp mounted on the topmost side portion of said U-shaped member, a tube vertically mounted in said clamp, a stem non-rotatively but vertically slidably mounted through said tube to have its bottom end connected with the top end of the tool being used, and means for holding said stem in various adjusted positions relative to said tube for spacing the end of said stem relative to said chuck permitting tools of different lengths to be used in said machine, said non-rotative but slidable mounting of said stem, comprising set screws threadedly engaged through the walls of said tube and freely en aging vertical grooves formed in said stem.

5. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a -U- shaped casing turned on its side to have its side portions .superimposed and its bottom side portion securely attached to a stationary portion of .said prime mover, a U -shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, said tool holding unit comprising a clamp mounted on the topmost side portion of said U-shaped member, a tube vertically mounted in said clamp, a stem non-rotatively but vertically slidably mounted through said tube to have its bottom end connected with the top end of the tool being used, and means for holding said stem in various adjusted positions relative to said tube for spacing the end of said stem relative to said chuck permitting tools of different lengths to be used in said machine, said latter means, comprising a nut threadedly engaging the top end of said stem and abutting the top end of said tube.

6. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, said tool holding unit comprising a clamp mounted on the topmost side portion of said U-shaped member, a tube vertically mounted in said clamp, a stem non-rotatively but vertically slidably mounted through said tube to have its bottom end connected with the top end of the tool being used, and means for holding said stem in various adjusted positions relative to said tube for spacing the end of said stem relative to said chuck permitting tools of difierent lengths to be used in said machine,- a T- shaped end formed on the topmost sideportion of said U-shaped member, said clamp being formed of adjacent sections with each of said sections comprising a central semi-cylindrical portion and end flange portions, one of said flange portions being formed with an opening and the other of said flanges being formed with a T- shaped slot, whereby when said sections are brought together said semi-cylindrical portions will engage about said tube and said T-shaped slots will engage opposite sides of said T-shaped end and said openings will be aligned.

7. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck,a U- shaped casing turned on its side to have its side portions superimposed and its bottom side portion securely attached to a stationary portion of said primemover, a U-shapedrmember turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool hold ing unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, said tool holding unit comprising a clamp mounted on the topmost side portion of r said U-shaped member, a tube vertically mounted in said clamp, a stem non-rotatively but vertically slidably mounted through said tube to have its bottom end connected with the top end of the tool being used, and means for holding said stem in various adjusted positions relative to said tube for spacing the end of said stem relative to said chuck permitting tools of different lengths to be used in said machine, a T-shaped end formed on the topmost side portion of said U-shaped member, said clamp being formed of adjacent sections with each of said sections comprising a central semi-cylindrical portion and end flange portions, one of said flange portions being formed with an opening and the other of said flanges being with a T-shaped slot, whereby when said sections are brought together said semi-cylindrical portions will engage about said tube and said T-shaped slots will engage opposite sides of said T-shaped end and said openings will be aligned, and a fastening element engaged through said aligned openings securing said sections together about said tube and on said T- shaped end.

8. A filing and jigsaw machine having a prime mover with a member arranged to reciprocate vertically and supporting a tool chuck, a U- shaped casing turned on its side to have its side portions superimposed and its bottom side securely attached to a stationary portion of said prime mover, a U-shaped member turned on its side and extended through said U-shaped casing and having its side portions projected beyond the ends of the side portions of said casing, a tool holding unit mounted on the free end of the topmost side portion of said U-shaped member, and means for mounting the free end of the bottommost side portion of said U-shaped member on said chuck causing said U-shaped member and tool holding unit to reciprocate with said chuck and superimpose said tool holding unit directly above said chuck so that a tool may be mounted between said chuck and tool holding unit, and means assisting said prime mover in the upward stroke of said U-shaped member, said latter means comprising a vertical cylindrical portion formed on the free end of the topmost side portion of said U-shaped casing, a vertical cylindrical slide section formed on the topmost side portion of said U-shaped member and slidably disposed in said vertical portion, lugs projecting from said slide section and through vertical elongated slots formed in the sides of said cylindrical portion, and resilient means fixedly mounted on said U-shaped casing and connected with said lugs and urging said U-shaped member upwards relative to said U-shaped casing to a position in which said lugs will be located at the top ends of said slots;

HARRY GREEN, 

